Developers

Personizely gives developers several ways to build on it: the JavaScript API (window.ply) to track events and goals, run campaigns and control widgets in the browser; the REST API, authenticated with API keys or OAuth, to manage campaigns, widgets and results from your own systems; the MCP server, which connects AI assistants such as Claude and ChatGPT to your account; and the server-side SDK, in Preview, for full-stack experiments and feature flags in Node, edge and browser code.